BMW M3 GTr 350 (E46)
ECU Remapping
BMW M3 GTr 350 (E46). Standard and remapped figures for this exact engine.
- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
BMW M3 GTr 350 (E46): standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+75 bhp · +21%- Standard350 bhp
- Remapped425 bhp
Torque
+80 Nm · +22%- Standard365 Nm
- Remapped445 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
ECU remapping for the BMW M3 GTr 350 (E46) takes it from 350 to 425 bhp and from 365 to 445 Nm in our stage 1 figures: +75 bhp (21%) and +80 Nm (22%).
The figures above are estimates for a standard, well-maintained BMW 3 Series petrol; they are not a guarantee of any particular result.
BMW M3 GTr 350 (E46) remap figures
- Fuel: Petrol
- Standard power: 350 bhp, remapped: 425 bhp (+75 bhp, +21%)
- Standard torque: 365 Nm, remapped: 445 Nm (+80 Nm, +22%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol BMW 3 Series: what changes with a remap
Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.
How the BMW M3 GTr 350 (E46) compares
Of the 26 petrol 3 Series engines in our data, this one comes 1st for power gain, which is 52 bhp above the 3 Series petrol average of 23 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 75 bhp and 80 Nm sits at or above that benchmark.
BMW 3 Series engine tuning
Remap Experts is a UK network of local remapping sites. Use Find a Local Tuner to reach your nearest site and get an exact quote.
Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.
Want these figures on your BMW M3 GTr 350 (E46)?
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your BMW 3 Series
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
Same model
Other 3 Series engines
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide